His first music teacher was D.A.D. Dharmadasa. Under the guidance of school music teacher K. M. Sugathapala, Rathnayake performed first in both the 1958 and 1959 solo singing competitions of the All Island Inter-School Musical Competition. Victor got his first instrument at the age of nine when his father presented him a
harmonium for his birthday. He studied singing and various instruments under musician Cyril Perera at the M.G.P. Institute in Mulgampola in his teens. In 1963, he began attending the State Music College, now known as the Institute of Aesthetic Studies. He wrote his first song, an ode to
Buddha, in 1964; it received play on radio stations run by the
Sri Lanka Broadcasting Corporation. In 1969, Rathnayke joined the Ministry of Education as a music instructor, and was assigned to a post at Eththalapitiya Maha Vidyalaya in Bandarawela in 1966. He would later look back to his days as a teacher in his song "Sihil Sulang Ralle," which described the beauty of his surroundings that he noted as he travelled on the train to the school. The lyrics were penned by Sena Weerasekera on Rathnayake's recollections. Rathnayke first recorded a song as a singer for the radio play
Manichora by veteran lyricist Piyasena Costa. The song was
Devangana Paradana Komala Katha. The first radio disc in Victor's name was in "Pancha Madhura" program produced by Madawala S. Peiris. The song
Hade Susuman Pathitha Weemen was composed by the musician DR Peiris, written by Dalton Alwis. Then veteran lyricist
Arisen Ahubudu wrote two songs for Rathnayake,
Sende Binde Mohaduru Paapa and
Golu Muhude Muthu Aete. He sang two songs in his maiden musical show as a professional artist.
Mahagama Sekara was the first person to introduce Ratnayake into playback singing. Rathnayake sang the song
Sara Sonduru Mal Patali with
Nanda Malini for the film
Hanthane Kathawa. ==1970s==